1. Department of Chemistry; Faculty of Science; King Abdulaziz University; P.O. Box 80203 Jeddah Saudi Arabia 21589
2. Center of Excellence for Advanced Materials Research; King Abdulaziz University; P.O. Box 80203 Jeddah Saudi Arabia 21589
3. Polymer Chemistry Laboratory 122; Chemistry Department; Faculty of Science; Assiut University; P.O. Box 71516 Assiut Egypt